Knee protector



FIG. 1 is a perspective view of a knee protector showing my new design;

FIG. 2 is a reduced top plan view thereof;

FIG. 3 is a reduced bottom plan view thereof;

FIG. 4 is a reduced front elevational view thereof;

FIG. 5 is a reduced side elevational view thereof; and,

FIG. 6 is a reduced rear elevational view thereof.

The callouts shown in FIGS. 2-6 indicate areas which are yellow, brown, blue and red. 

The ornamental design for a knee protector, as shown and described. 